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Weather warnings may have been issued

Southwest Highlands

Confidence

Low for extent and clearance of low cloud. Low for timings of duration of rain bands on Thursday and Friday.

  • This evening
  • Tuesday
  • Wednesday
  • Further outlook

Monday 25 September 2017

Sunrise: 07:10   Sunset: 19:11
Moon phase: Waxing crescent

Dry with clear periods.

Tuesday 26 September 2017

Weather hazards

Poor visibility Medium likelihood Hide detail

Poor visibility presents challenging route finding conditions. Visibility could be significantly less than 50 metres in all directions with few or no visual references, especially on featureless moors or plateaux. Distances become hard to judge and cliff or cornice edges can be difficult to recognise. These conditions require good navigational skills. There is a risk of white-out conditions when mist or fog is combined with extensive snow cover.

Gales Low likelihood Show detail

Progress will be impeded by very strong winds. Walking will be difficult and strenuous at times with a potential for one to be blown over in gusts. There can be a marked increase in winds through cols or on exposed ridges and summits. Distances often take longer to cover with compass bearings becoming more difficult to follow accurately.

Strong sunlight Low likelihood Show detail

Harmful UV levels from sunlight increase with altitude giving a greater risk of sunburn and eye damage, even on some overcast days. On breezy days, the cooling effect of wind on exposed skin may disguise any feeling of sunburn until it is too late. If there is snow cover, glare increases the effect of UV rays especially on the eyes. It is advisable to wear sun block, protective clothing such as a long-sleeved top and hat and have good quality eye protection.

Forecast

Dry with some patchy low cloud on the hills.

Weather at 800m

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
Partly cloudy night Cloudy Fog Cloudy Sunny intervals Sunny intervals Sunny intervals Partly cloudy night
00% 00% 00% 00% 00% 00% 00% 00%
Chance of precipitation
1,900 1,900 1,900 2,100 2,100 2,100 2,100 2,100
Freezing level (m)
The level above which snow is expected to settle or the ground is expected to be frozen

Wind speed and direction (mph) By altitude above mean sea level

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
1100m SE 21 26 SE 24 29 SE 25 31 SE 27 34 SE 28 36 SE 29 37 SE 31 40 SE 34 44
900m SE 17 23 SE 19 24 SE 20 26 SE 22 29 SE 23 30 SE 24 32 SE 26 34 SE 29 38
600m SE 12 15 SE 13 16 SE 14 18 SE 16 21 SE 17 24 SE 19 27 SE 20 27 SE 22 29
300m SE 7 10 E 7 11 SE 7 12 SE 9 14 SE 11 20 SE 10 20 SE 10 19 SE 11 20
Glen E 2 7 E 2 7 E 2 7 E 3 9 SE 7 19 SE 7 19 SE 6 16 SE 7 17

Temperature (°C) By altitude above mean sea level

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
1100m 5 5 6 6 6 6 6 6
900m 7 7 8 9 9 9 9 8
600m 10 11 11 11 12 12 12 11
300m 12 11 11 13 15 15 14 13
Glen 11 11 12 14 17 17 15 14

Feels like temperature (°C) By altitude above mean sea level

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
1100m 0 0 0 1 0 0 0 -1
900m 4 3 4 5 5 5 4 4
600m 8 8 8 8 9 9 8 7
300m 10 10 10 11 13 13 12 11
Glen 11 11 11 14 16 16 15 13
Sunrise: 07:12   Sunset: 19:09
Moon phase: Waxing crescent

Weather

Dry throughout the day. Some mist and fog banks in the glens at first, but this should clear by mid-morning. Some cloud likely to persist across the east of the region, notably the Trossachs. Best of the brightest weather towards the west coast.

Chance of cloud-free mountain/hill tops at 800m

40% at first, with cloud likely to be extensive down to 300 to 600 metres. Western most ranges of Mull and Lochaber likely to see the clearest weather to start the day and enjoy the best of the cloud free summits right through the day. Increasing to 70% by afternoon but cloud down to 650 metres likely to linger across the Trossachs, Kintyre, Arran and Ben Vorlich.

Visibility

Rather hazy at best at all levels with distant ridges indistinct.

Met Office Aberdeen meteorologist's view

Cloud may prove stubborn to lift off the tops of the Trossachs and Arran. Note risk of gales by evening above 900 metres.

Wednesday 27 September 2017

Sunrise: 07:14   Sunset: 19:06
Moon phase: Waxing crescent

Weather

Little change, early mist and low cloud lifting but cloud may be reluctant to lift off the summits in the Trossachs. Otherwise dry for daylight hours, but persistent rain spreading northeast in the evening. Windy with strong southeasterly winds, gales on the tops.

Temperature

  • At 800m Plus 8 Celsius
  • Glen Plus 9 rising to 14 Celsius
  • Freezing level Above the summits

Visibility

Rather hazy again, becoming poor in rain by evening.

Chance of cloud-free mountain/hill tops at 800m

40% in the morning with cloud down to 500 to 600 metres. Improving 60% in the afternoon, although cloud may linger around 600 metres across the Trossachs.

Maximum wind speed expected

Southeasterly 30 mph gust 50 mph

Thursday 28 September 2017

Sunrise: 07:16   Sunset: 19:03
Moon phase: First quarter

Wet and windy in the morning, becoming drier and brighter from the west by afternoon. Summit gales.

Friday 29 September 2017

Sunrise: 07:18   Sunset: 19:01
Moon phase: First quarter

Very windy on the tops with rain moving east, becoming drier later.

Saturday 30 September 2017

Sunrise: 07:20   Sunset: 18:58
Moon phase: First quarter

Low confidence at this range but a brief drier day is possible for Saturday.

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